Scaffolding



v 2 Sheets-Sheet 1. A. BITTERLY.

SGAPPOLDING.

(No Model.)

N0. 403,636. Patented May 21, 1889.

ATTORNEYS.

WITNESSES:

(No Model.) 2 Sheets-Sheet 2.

. A. BITTERLY.

SOAFFOLDING.

No. 403,636. Patented May 21, 1889.

WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

ADOLPI-l BITTERLY, OF OTTAWVA, ILLINOIS.

SCAFFOLDING.

SPECIFICATION forming part of Letters Patent No. 403,636, dated. May 21, 1889.

Application filed. October 2, 1838. Serial No. 286,939. (No model.)-

To all whom it may concern.-

Be it known that I, ADOLPH BITTERLY, of Ottawa, in the county of La Salle andrstate of Illinois, have invented a newaud Improved Scaffolding, of which the following is a full, clear, and exact description.

The object of the inve tion is to provide a now and improved scaffold adapted fol-building chimneys, for plastering, for painting of the house.

rooms and walls, and for other purposes, being simple in construction and easily setup or taken down, as desired.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of the improvement as applied to a gable-roof. Fig. 2 is a side elevation of the same. Fig. 3 is a like view of the same in a different position. Fig.

4 is a similar view of the same with parts in section and as used for staging on the roof. Fig. 5 is an enlarged perspective view of the improvement as used for staging on the side Fig. 6 is a side elevation of the cross-piece with an extension, and Fig. '7 is a plan view of the improvement as folded up.

The improved scaifold consists of the two parts A and A, which are alike in construction, each being provided with a cross-piece, B, having a row of apertures, B, and the downwardly-extending lugs C and 0, formed near the middle of the said cross-piece. The lower ends of the lugs O and C, in the form of scaffold shown in Fig. 2, are pivotally connected with the legs D by means of the bolts E, passing through the said lugs O. and C and the respective legs D. Each of the legs D is triangular in shape, consisting of the side beams, D and D and the end beam, D the apex of the triangle of each leg D being secured by the boltE to the respective lug O or C". The side beams, D and D support a transverse rod, D passing through corresponding apertures, D formed in the side beams, D" and D The end beam,D is preferably fastened to the side beams by means of angle-irons D secured by one wing to the end beam and by its other wing, by bolts D, to the end beam, D as shown in Fig. 5.

On the rod I) in each of the legs I) of the scaitold shown in Figs. 1 and 2 is held one end of a supporting-beam, F, connected by a bolt, G, with the respective end of the crosspiece 13, said bolt G passing through one of the apertures F in the said supporting-beam F and a corresponding aperture, I3, in the cross-piece B. The device, when disconnected, can be set to the pitch of any roof, one leg I) being on one side and the other leg on the other side of the roof, the cross-piece B extending horizontally across the ridge-piece at right angles to the same. When two devlces are thus set up, boards are placed across the tops of the cross-pieces B, thus formin g a complete scaitold for the operators to stand and Work on.

In order to raise or lower the platform formed by the boards, (see Fig. 1,) I employ a T-piece, H, adapted to pass between the lugs C and C and fastened by abolt, I, in the middle of the cr0ss-pieee 13. The transverse. arm IF of the T-piece II is provided with apertures II", through which pass the bolts E, supporting the legs I). 'Ihccross-piece ll of the T-piece II rests on the ridge-piece of the roof, as is plainly illustrated in Fig. 1. The apertures H in the vertical arm of the T- piece H permit a raising and lowering of the cross-piece l3, and the latter is adjusted in the apertures F of the supporting-beams F to correspond to the raising or lowering on the vertical arm of the T-piece ll.

Then it is desired to form a platform in a room,for instance, then the cross-piece B is pivotally connected by its lugs O C with the supporting-beams F, as is plainly shown in Fig. 3, and the legs D are pivotally connected with the said supporting-beams F and the cross-piece B. The end pieces, D, of the legsD rest on the floor, thereby supporting the entire device. The planks or boards are placed across the cross-pieces Bin the same manner as before mentioned in reference to Figs. 1 and 2.

As illustrated in Fig. 4, the device is employed for forming a platform on the side of a roof for building a chimney or for other purposes. In this case the cross-piece B is pivotally connected at one end to one of the legs D, laid flat on the roof, and provided at its transverse end D with a hook, J, hooked onto a scaffolding, A, placed on the other side of the roof. The cross-piece B is also pivotally connected with the otherleg D, the lower end of which rests on the side of the roof, and the outer end of the cross-pieceB is pivotally connected to one of the supporting-beams F, held, as before described, on the rod D of the inclined leg D. The cross-pieces B extend horizontally, thus forming a horizontal platform by placing the planks across the said cross-pieces, as before described. It is understood that the various bolts G and E are inserted into the respective apertures so as to place the cross-piece horizontally.

As illustrated in Fig. 5, the device is applied to form a staging on the side of a house, and in this case one of the legs D forms the support for the planks used to make the platform. The cross-arm D of the leg D is connectcd by the hook J to one of the uprights L of the house, and the apex of the leg D is pivotally connected by the bolt E with a scantlin g, 0, resting on the ground. The supporting-beam F in this case forms abrace and extends from the rod D to the scantling O, to which it is secured bya bolt, G. I prefer to place a spring, N, in the apex of each leg D, so as to press the sides D and D toward each other, thereby holding the said sides firmly in contact with the sides of the scantling 0.

NVhen the scaffold is set up in a room, as illustrated in Fig. 3, and the operator desires an extension at one side, he employs the extension-beam P, provided with lips P, fitting over the,outer part of the cross-piece B, so that the said extension P can be moved in and out horizontally on the cross-piece B, to which it may be secured by a bolt, G. The

cross-arm D of the legs D is provided with a.

longitudinal slot, D, for the hook J.

Then the device is to be folded up, theseveral bolts G are removed; thus disconnecting the cross-piece B from the supporting-beams F. The legs D can then be swung parallel with the cross-piece B, and the supportingbeams F are swung inward, also in aparallel position, as is plainly shown in Fig. 7.

The device may also be used for other purposes.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a seaffo1d,'a triangular leg comprising side bars, D D a cross-bar, D connecting the bars at one end, a rod, D connecting the side bars between their ends, and a removable clampin g-bolt eonnectin g the side bars at their opposite ends, and a bar,'F, mounted at one end on the cross-rod D to swing in the plane of the leg and provided with a series of transverse apertures, F, and an intermediate transversely-apertured bar bolted to thealoar F and conneete.dwith the clamping-bolt, substantially as set forth.

2. In a scaffold, a triangular leg comprising side bars, D D a longitudinallyslotted cross-bar, D connecting said side bars at one end, a bolt connecting the opposite ends of the sidebars, an intermediate cross-rod, D, a hook-bolt, J, passed through said slot, an apertured bar mounted at one end on said eross rod, and an apertured bar detachably connected with the bar F and the said bolt, substantially as set forth.

3. A scaffold consisting in'two triangular legs or frames having removable bolts at their adjacent narrow ends, a cross-rod between their ends, apertured bars F, mounted on said cross-rods, and an aperturcd bar detachably connected between its ends with said bolts, and at its ends bolted to the bars F, substantially as set forth. 1

4:. A scaffold consisting in the two triangular legs or frames having cross-rods between their ends and removable bolts at their adjacent narrow ends, apertured bars F, mounted at one end on said rods D and the apertured cross-bar B, detachably connected between its ends by a T-shaped apertured bar, H, with said bolts, the vertical arm of said bar 1-] bein g be. JBCl "to the oar B and the transverse arm to the legs, substantially as set forth.

5. The herein-described scafiold, consisting in the legs or frames D, having boltsE at their adjacent ends, cross-rods D the apertured bars'F, and the removable T-shaped apertured bar I-l, through the transverse arm of which said bolts pass, and the apertured bar B, hav ing depending apertured lugs O 0', between which the vertical arm of the bar H passes, and a bolt detachably connecting said vertical arm with the bar B, substantially as set forth.

ADOLPH' BITTERLY.

\Vitnesses:

ALBERT MUIERHOFER, LEO STAUFFER. 

